#ifndef _SDK_KISS_FFT_KISS_FLOAT_MOBVOI_KISS_FFTR_H_
#define _SDK_KISS_FFT_KISS_FLOAT_MOBVOI_KISS_FFTR_H_

#include "sdk/kiss_fft/kiss_float/mobvoi_kiss_fft.h"
#ifdef __cplusplus
extern "C" {
#endif

struct kiss_fftr_state{
    kiss_fft_cfg substate;
    kiss_fft_cpx * tmpbuf;
    kiss_fft_cpx * super_twiddles;
#ifdef USE_SIMD
    void * pad;
#endif
};
    
/* 
 Real optimized version can save about 45% cpu time vs. complex fft of a real seq.
 */

typedef struct kiss_fftr_state *kiss_fftr_cfg;


kiss_fftr_cfg mobvoi_kiss_fftr_alloc(int nfft,int inverse_fft,void * mem, size_t * lenmem);
/*
 nfft must be even
 If you don't care to allocate space, use mem = lenmem = NULL 
*/


void mobvoi_kiss_fftr(kiss_fftr_cfg cfg,const kiss_fft_scalar *timedata,kiss_fft_cpx *freqdata);
/*
 input timedata has nfft scalar points
 output freqdata has nfft/2+1 complex points
*/

void mobvoi_kiss_fftri(kiss_fftr_cfg cfg,const kiss_fft_cpx *freqdata,kiss_fft_scalar *timedata);
/*
 input freqdata has  nfft/2+1 complex points
 output timedata has nfft scalar points
*/

#define kiss_fftr_free free

#ifdef __cplusplus
}
#endif
#endif  // _SDK_KISS_FFT_KISS_FLOAT_MOBVOI_KISS_FFTR_H_
